精确
词首
词尾
模糊
搜单词
背单词
题海网
prophase
基本释义
词形变化
详细释义
双解释义
英英释义
短语词组
常见例句
prophase
noun
[mass noun](Biology)the first stage of cell division, before metaphase, during which the chromosomes become visible as paired chromatids and the nuclear envelope disappears. The first prophase of meiosis includes the reduction division
(生)(细胞有丝分裂)前期
语源
late 19th cent.: from pro- 'before' + phase
热门查询
switch n.开关,转换,转换器,软鞭子,[信]接线台 vt.& vi.转变,改变,转换,关闭电流,鞭打 vt.转换,挥动(棍棒、鞭子等),迅速转动,鞭打 vi.交换,调换
switchback n.在Z形路轨向原来的方向返驶,改变角度 adj.使用之字爬坡路线的
switchblade n.(按钮式弹簧开启的)弹簧小折刀
switchboard n.配电盘,电话交换机
switchgrass n.柳枝稷
switchman n.转辙员
switchover n.替换,转换
switchpoint 开关点
switchyard n.调车场
swith adv.<主方>迅速地,立刻,当即
swither vi.犹豫,踌躇,困惑 n.怀疑,困惑
switzer n.<罕>瑞士人,瑞士雇佣兵
考试词汇表